The three ways to get sales leadership —build it in-house, outsource it, or hire a solo fractional— don't solve the same problem. The useful question isn't "which is best?", but "which fits your maturity, your urgency, and your tolerance for risk?".
First: two options that aren't complete alternatives
They're often confused with sales leadership, and it's worth clearing them up with respect, because they're good at what they do:
The consultancy delivers a diagnostic and recommendations. It's valuable when you need an outside view and a plan. But it leaves you a report and the problem of executing it: it doesn't run your sales function. If the problem is "I don't know what to do," it helps; if it's "I know what to do but it isn't getting done," it doesn't.
The outbound agency executes one channel —usually, booking meetings— and optimizes its own number. It's useful when the bottleneck is purely the top of the funnel. But it doesn't govern your forecast, your pipeline, your pre-sales, or your closes: it turns one tap, it doesn't run the system.
Neither of the two is "your sales leadership." The real alternatives for that are three.
The three real routes
ABuild it in-house
What it is: hire sales leadership (and, with it, the team) on payroll. Its best case: control is maximum and the asset stays 100% inside; one full-time person, present every day, building internal muscle and culture. When volume and maturity already justify a fixed structure of your own —and you have someone to design the system and time for it to get going— it's the natural route.
BOutsource the function (as a Service)
What it is: hire the complete sales leadership function as an outsourced service —strategy, demand generation, methodology, forecast, governance, and the technology that executes it— on a fixed monthly retainer. Its best case: you have the entire function from day one, without building structure, without a ramp, and without turnover risk, and everything built stays documented in your house. It's capacity and system rented, not a person hired.
CSolo fractional
What it is: an experienced sales director or CRO who dedicates a few days a month to you. Its best case: it injects senior judgment at a contained cost when you already have execution and only lack a head to lead. For a defined problem or a specific stage, it's agile and sensible.
The decision matrix
| Build in-house | Outsource · Vertex | Solo fractional | |
|---|---|---|---|
| What it is | Person(s) on payroll | The complete function as a service | One senior person part-time |
| Scope | Whatever you hire (and build) | Leadership + execution + system + technology | Leadership/judgment; execution is on you |
| Who runs the day-to-day | Your team | The service team + your people | Your team (the fractional leads) |
| 12-month cost (reference) | Sales director loaded 100–120k + team → 1st year 150k+ | €5,200/month + 4% variable on closed revenue | A fraction of a sales director (by days) |
| Time to capacity | Hiring 2–3 m + ramp 3–6 m | Day 1; results from month 6 | Fast on judgment; slow if execution is missing |
| Risk | Turnover, bad hire, severance | 6-month commitment; no headcount risk | Dependency on a single person |
| What stays in your house | Everything (if documented) | Everything: CRM, playbook, cadences, forecast, data | Whatever that person leaves in writing |
| Technology / system | Whatever you buy and assemble | Included (Prospector + method) | Whatever you already have |
| Scalability / reversibility | Rigid (hire/fire) | Flexible (scale dedication up/down) | Flexible but limited by being one person |
| When it's your best option | High volume and maturity; you want the asset in-house and tolerate the risk | You need the complete function now, without building structure or taking on risk | You only lack senior judgment and already execute well |
When to choose each (without self-deception)
Choose to build in-house if your operation already has the volume to sustain a fixed structure, you have someone to design the system (or the time for the new executive to build it from scratch), and you want the asset and the culture entirely on payroll, accepting the ramp and the hiring risk as part of the price.
Choose a solo fractional if your execution already works and the only thing missing is judgment and direction on an occasional basis, with a tight budget and a defined problem. It's the lightest option — and also the most dependent on a single head.
Outsource the function if you need complete sales leadership —direction and execution and system and technology— running fast, without building structure or taking on headcount risk, and you want everything built to stay documented in your company. It's the most common case in B2B SMEs that sell well but well below their potential.
If after reading this your case is clearly the first or the second, you already have your answer —and it's a good answer—. We prefer that to placing you where you don't fit.
- How much does a sales director cost in Spain? — the honest breakdown of the real cost of an in-house sales director (salary → loaded → first-year cost).
- Revenue Cost Model™ — the calculator that compares, with your data, building leadership in-house versus having it as a service: 12-month TCO, risk and time included. If the in-house model comes out better, you'll see it.
Where Vertex fits
To be transparent: Vertex is route B taken to the extreme. A fractional CRO —senior judgment part-time— but with a team, a method, and a proprietary operating engine (Prospector) behind it, so it doesn't just lead: it also executes and leaves the system in place. Against building in-house, you avoid hiring, the ramp, and turnover risk. Against a solo fractional, you don't depend on a single head: there's an entire function behind it.
It's not the answer for everyone, and this guide exists precisely so you decide. If, putting them side by side, the outsourced route is the one that fits your maturity, your urgency, and your risk, that's where we start.
Frequently asked questions
What's the difference between outsourcing sales leadership and a fractional CRO?
A solo fractional CRO is a senior person part-time. Outsourcing the function (as in the Vertex model) is that leadership plus the team, the method, and the technology that execute it: it doesn't just lead, it also operates and leaves the system in your house.
Is it cheaper to outsource or hire a sales director?
It depends on your data. As a reference, an in-house sales director costs 100–120k fully loaded (plus team and the real first-year cost, above 150k), versus €5,200/month plus 4% on closed revenue for sales leadership delivered as a service. The calculator runs the comparison with your figures.
What if I want to keep the system when it ends?
In the outsourced model, everything built —CRM, playbook, cadences, forecast, data— is documented and yours. The commitment is 6 months, not for life: we build functions that don't depend on people, not even on us.
When should we NOT outsource?
If you already have a mature sales leadership executing well and only lack occasional judgment (a solo fractional is better), or if your volume justifies a fixed structure of your own and you want the asset 100% in-house, accepting the ramp. We'll tell you in the first conversation.
Put the three routes next to your numbers.
Run the comparison with your own data, or let's talk about whether the outsourced route fits your maturity, your urgency, and your risk — without placing you where you don't fit.